The engine water plug is designed to prevent the engine from freezing and damaging the body. When ice builds up inside the engine, the water plug will open to protect the engine. Since the original engine cooling medium is mostly water, antifreeze is rarely used. In winter, if garage storage is not available, drain the water and refill it the next day. If you forget to drain the water once, the water will freeze and expand, and the engine plug will most likely freeze. So a water stopper was designed. There is also a reason that because the cylinder will have holes during the casting process, the use of water plugs is for the normal operation of the engine.
Water plugs can also be called: core plugs / bowl plugs / engine heads / cylinder heads / water plugs / water plugs / water plugs / water plugs
The long-term contact between the engine water block and the automobile antifreeze, coupled with high temperature, is very likely to rust. If the engine water block on the top of the cylinder head becomes rusted, the antifreeze in the waterway will leak. Mixed with car oil, insufficient engine cooling, high temperature alarm, car oil loses wettability, increasing engine damage. So, if you notice a refrigerant leak or your vehicle has a high temperature alarm, check that the water plug is intact. If there is any problem, the engine water plug must be replaced immediately.
Before replacing the engine water-cooling block, the water must be cleaned, then the air filter element and air intake must be removed, and then the supercharger and generator set must be removed. After removing the heating tube, you can see the water block. The engine water plug is a replaceable annular cup-shaped metal material plug. To remove the water plug, knock off one side of the water plug, lift the other side up, lift it with needle-nose pliers, and install a new water plug.
In some cars, the transmission must be removed to replace the engine water block. After removing the transmission, remove the engine timing chain cover. It can be seen that there is a water block on the engine block and a water block on the top of the cylinder head. The overall replacement project is very large and must be carried out in a professional after-sales repair shop.
